From: Pedro Alves <palves@redhat.com>
Date: Mon, 18 May 2009 12:12:16 +0000 (+0000)
Subject: 	* corelow.c (core_open): Flush the register cache before doing
X-Git-Tag: sid-snapshot-20090601~173
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=739fc47ac9a6169d7b12e82a3ec6ce8472354f78;p=thirdparty%2Fbinutils-gdb.git

	* corelow.c (core_open): Flush the register cache before doing
	anything with registers.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1a99b111789..ecfe85adca6 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2009-05-18  Pedro Alves  <pedro@codesourcery.com>
+
+	* corelow.c (core_open): Flush the register cache before doing
+	anything with registers.
+
 2009-05-18  Pedro Alves  <pedro@codesourcery.com>
 
 	* inflow.h (our_process_group): Remove declaration.
diff --git a/gdb/corelow.c b/gdb/corelow.c
index 5d6f0726150..ffaf04c93ae 100644
--- a/gdb/corelow.c
+++ b/gdb/corelow.c
@@ -379,6 +379,14 @@ core_open (char *filename, int from_tty)
      from ST to MT.  */
   add_thread_silent (inferior_ptid);
 
+  /* Need to flush the register cache (and the frame cache) from a
+     previous debug session.  If inferior_ptid ends up the same as the
+     last debug session --- e.g., b foo; run; gcore core1; step; gcore
+     core2; core core1; core core2 --- then there's potential for
+     get_current_regcache to return the cached regcache of the
+     previous session, and the frame cache being stale.  */
+  registers_changed ();
+
   /* Build up thread list from BFD sections, and possibly set the
      current thread to the .reg/NN section matching the .reg
      section. */